/Engine/Source/Runtime/Engine/Classes/PhysicsEngine/BodySetup.h
Finds the shortest distance between the body setup and a world position. Input and output are given in world space
NOTE: This function ignores trimesh data
The distance between WorldPosition and the body setup. 0 indicates WorldPosition is inside one of the shapes.
float GetShortestDistanceToPoint ( const FVector & WorldPosition, const FTransform & BodyToWorldTM, bool bUseConvexShapes ) const